Lamp-burner



t e e h S m e e h S 2 m M U HB RP m L 6 d 0 M m I No. 531,219. P tented-1160,18, 1894.

INVENTOR WITNESSES (No Model.) -2SheetsSheet 2.

' PLRHIND.

LAMP BURNER; v No. 531,219. Patented Dec. 18, 1894'.

* ED STATES PATENT Enron.

FRANK RHIND, OF MERIDEN, ASSIGNOR TO THE BRIDGEPCRT BRASS COMPANY, OF BRIDGEPORT, CONNECTICUT.

LAMP-BURNER.

SPECIFICATION forming part of Letters Patent No. 531,219, dated December 18, 1894.

Application filed March 31, 1894. Serial 'No. 505,850. (No model.)

To' all whom it may concern.-

Be it known that I, FRANK RHIND, a citizen of the United States, residing at Meriden, in

the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Lamp-Burners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make anduse the same.

My invention relates to the class of lamp tributer after which it flows down on the under side of the outer air distributor and diffuses over the inner side of the perforated burner body. The result is that oil collects to a greater or less extent in the base and upon the parts of the burner and considerable passes to the outer side thereof; but what is of even more importance the heat while the burner is in use causes evaporation of the oil which is constantly accumulating in the base and upon the parts of the burner causing a smell which is far from agreeable. This difficulty does not arise to as great an extent in burners of the Rochester type in which the space between the outer wick tube and the burner body is left open. The objection to leaving this space open is that the base forms a pocket for the accumulation of dust, particles of charred wick, burned matches, 8.70.

The use of the outer-air'distributer, so called,

prevents the accumulation of dirt in thebase but in ordinary burners it also forms a bridge for the passageof oil from the wick to the various parts of the burner, the inner side of the outer air distributor being constantly covered with oil although the outer side may be kept dry by the heat of the flame.

In order to provide a burner which shall possess the advantages of both systems, that is, shall have an outer air distributor and itsaccompanying advantages without the accompanying objections which have heretofore been noted in thisclass of burners, that caused by the evaporation of oil shall be wholly avoided, I have devised the novel construction which I will now describe, referring by numbers to the accompanying drawings, forming part of this specification, in which Figure 1 is a view partly in elevation and partly in section illustrating my novel invention, the burner body and the outer air distributer being in section and the wick tube being in elevation; Fig. 2, a section of the' burner base, wick tube and removable sleeve detached; Fig. 3, a section on the line w a; in Fig. 2, looking up; Fig. 4, a section on the line y y in Fig. 1; Fig. 5, a perspective of the sleeve detached, and Figs. 6, 7,8, 9 and 10 are detail views illustrating modifications in the construction of the wick tube and removable sleeve.

1 denotes the burner base; 2, the burner body; 8, the outer air distributer; 4:, the wick ards by which the chimney gallery is carried, and 11 a ring at the lower ends of the standards which slides over the wick tube and keeps the chimney gallery and standards perto produce this space which asa matter of fact lies between the removable sleeve'and the wick tube it is necessary that one of said parts be provided with contact points which engage the other part but which retain the parts as a whole out of contact witheach' other. This may be.accomplished by forming projections 5 which constitute the hearing surfaces either on the inner side of the wick tube or on the outer side of the remov able sleeve. These projections may be formed in any suitable manner. For example the tube; 9, the chimney gallery; 10, the stand- I wick tube may be corrugated as shown in Figs. 1 to 4 inclusive or the wick tube may be provided with inwardly extending bossesformed by indenting the metal as in Fig. 6 or the wick tube maybe provided with independent projections soldered to the inner side thereof as in Fig. 8 or the removable sleeve may be provided with outwardly extending bosses formed by indenting the metal as in Fig. 7 or the removable sleeve may be corrugated as in Fig. 9 or the wick tube and the removable sleeve may be held out of contact by placing a corrugated strip of metal between .them as in Fig. 10.

It is of course well understood that it is quite common in metal lamps to admit air to the reservoir, an opening for this purpose being formed in the feeder cap or in the top of the reservoir itself.

than the wick so that even when the latteris swelled by absorption of oil it will not expand sufliciently to fill the wick tube so that as a matter of fact the space 8 between the wick and the wick tube extends the entire length of the latter so that a current of air can pass freely upward between the wick and the wick tube when the burner is in use. This space is a vitally important feature of my invention. In the first place it provides an open passage for the surplus oil which runs up the wick to flow back into the reservoir, andsecondly by providing that there shall be aconstant ascending air current'from the reservoir itself between the wick and the wick tube, the burneris kept cooler than has heretofore been possible and the height and brilliancy of the flame are greatly intensified.

In my preferred form which is illustrated in Figs. 1 to 5 inclusive the wick tube itself is corrugated as is clearly shown, the corrugations preferably extending nearly to the top thereof. These corrugations serve to form channels 13 between the wick tube and ring 11, see Fig. 4, which have an important function in keeping the burner cool by reducing the contact surface between the wick tube and ring 11 and by providing spaces for air currents between the wick tube and the ring thus acting to prevent the conduction of heat to the ring, standards and burner body and assisting to keep the wick tube itself cool by providing constant air currents on both sides of it.

6 denotes stops which are formed in any suitable manner as by striking in the metal of the wick tube or by soldering a piece thereto and which serve to limit the downward movement of the removable sleeve in the wick tube, it being preferable that the upper end of the removable sleeve shall be even with the top of the wick tube.

The operation will it is believed he clearly understood from the drawings.

It is of course well understood that when lamps are not in use there is more or less passage of oil up the wick tube from capillary attraction which if a way is provided will diffuse over the burner body and outer air distributer both inside and outside and furthermore that when the lamp is lighted the heat accelerates capillary action to such an extent that more oil passes up the wick than can be consumed by the flame. This surplus oil also is sure to diifuse over the burner both inside and outside if there are connections for it to pass over.

In my improved burner I wholly prevent the passage of oil from the wick to the parts of the burner and keep the burner cool, clean and dry and practically free from smell whether the lamp is in use or not, as space 8 effectually prevents the passage of oil from the wick to the wick tube, so that all the surplus oil must pass back into the reservoir and will not reach the other parts of the burner at all. Thesleeve fits loosely enough in place so that it may be readily removed at any time for the purpose of wiping when the lamp is cared for.

Having thus described my invention, I claim- 1. In a central draft lamp, the combination with an outer air distributor, of a wick tube, a removable sleeve adapted to lie within said wick tube, and projections on one of said parts below the top of the sleeve which form contact points between said parts so that the wick is kept out of contact with the upper end of the wick tube, and a space is likewise formed between the upper end of the sleeve and the upper end of the wick tube as and for the purpose set forth.

2. The combination with the wick tube, of a removable sleeve adapted to lie Within the wick tube, and projections 5 on one of said parts below the top of the sleeve which form contact points between said parts so that the wick is kept out of contact with the upper end of the wick tube, and a space is likewise formed between the upper end of the sleeve and the upper end of the wick tube, and said wick tube being provided with a stop 6 by which the sleeve is retained even with the top of the wick tube.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK RlIIND.

Witnesses:

A. M. Woosrnn,

V. RICHARDSON. 

